2025 Trek Bikes Checkpoint ALR 4 58 cm
Build
700C/29 in × 40 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Trek Bikes Checkpoint
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 609mm |
| Reach | 411mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, Unknown | 580mm |
| Top Tube Length, Effective/Horizontal Center | 597mm |
| Top Tube Slope | 5.5deg |
| Head Tube Angle | 72.3deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 165mm |
| Bottom Bracket Drop | 74mm |
| Bottom Bracket Height | 277mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 428.7mm |
| Front-Center | 633.7mm |
| Front-Center Horizontal | 629.3mm |
| Wheelbase | 1058mm |
| Fork Offset/Rake | 45.4mm |
| Trail | 64.4mm mid/neutral |
| Mechanical Trail | 61.4mm |
| Wheel Flop | 18.7mm |
| Standover Height | 829mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 107.7mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 102mm |
ALR 4 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1760mm |
| Crank Length | 175mm |
| Handlebar Width | 44cm |
| Stem Length | 90cm |
| Stem Angle | 7deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Published Sizing Recommendations
| Height | 5 ft 11 in to 6 ft 1 in |
Source:https://www.trekbikes.com/us/en_US/bikes/bikepacking-touring-bikes/checkpoint/checkpoint-alr/checkpoint-alr-4/p/41513/?colorCode=grey